threadpool

In thread related Mbeans of Tomcat I see under Catalina.ThreadPool. there are different attributes viz. maxThreads, currentThreadCount, currentThreadsBusy etc. So, where can I get the description of these Mbean attributes, what each of these attribute is indicating, I need to include this in my monitoring automation code, Which will provide the Thread utilization stats. also possible I would like to see the Source code, where can I get it? When I see the Mbean class name (through jconsole) it shows as org.apache.tomcat.util.modeler.BaseModelMBean, but when I go through the source code of

We see lots of callstack like the below, may I know what's conditions \situation would happens this? OS Thread Id: 0x48654 (559) Current frame: ntdll!NtWaitForSingleObject+0xa Child-SP RetAddr Caller, Callee 00000020a76cf480 00007fffd4ea1118 KERNELBASE!WaitForSingleObjectEx+0x94, calling ntdll!NtWaitForSingleObject 00000020a76cf520 00007fffce50ce66 clr!CLRSemaphore::Wait+0x8a, calling kernel32!WaitForSingleObjectEx 00000020a76cf5e0 00007fffce50d247 clr!ThreadpoolMgr::UnfairSemaphore::Wait+0x109, calling clr!CLRSemaphore::Wait 00000020a76cf620 00007fffce50d330 clr!ThreadpoolMgr:

The .NET / .NET Core Thread Pool uses two different categories of threads internally: worker threads and I/O Completion Port (IOCP) threads. Both are just usual managed threads, but used for different purposes. Via different APIs (e.g. Task.Start or ThreadPool.QueueUserWorkItem ) I can start CPU-bound async operations on the worker threads (which shouldn't block, otherwise the Thread Pool would probably create additional worker threads). But what about performing I/O-bound asynchronous operations? How do the IOCP threads behave exactly in these situations? Specifically, I have the following

I have the following: public ICollectionView Children { get { // Determining if the object has children may be time-consuming because of network timeouts. // Put that in a separate thread and only show the expander (+ sign) if and when children were found ThreadPool.QueueUserWorkItem(delegate { if (_objectBase.HasChildren) { // We cannot add to a bound variable in a non-UI thread. Queue the add operation up in the UI dispatcher. // Only add if count is (still!) zero. Application.Current.Dispatcher.BeginInvoke(new Action(() => { if (_children.Count == 0) { _children.Add(DummyChild);

I'm writing a Java client which could theoretically be used in a different environment: Java main(), in a servlet container, or via dependency injection. The client implements internal connection thread pooling. The problem with this approach is that users of the client that are unaware of the fact that an internal thread pool is implemented will see his or her application "hang" on shutdown. My users need to know to send a shutdown() message to the library. I'm wondering if any other alternative approach could be taken that would, on one hand, allow me to start a thread pool for my

I wish to do some benchmarking on a busy WCF service (IIS-hosted, PerSession). Since WCF gets a new ThreadPool thread for each service call, I'd like to know if the ThreadPool's max threads count is ever reached, and if I should increase it (SetMaxThreads). The only way to get hard facts I can think of is to instrument the code with ThreadPool.GetAvailableThreads. Is there any way for me to monitor if ThreadPool has reached max threads and is waiting for threads to be released? Thanks. 来源： https://stackoverflow.com/questions/16712322/monitor-threadpool-use